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Contamination incidence observed in the manufacturing process.
| Phase of the process | Culture days | Year |
Total | ||||
|---|---|---|---|---|---|---|---|
| 2010 | 2011 | 2012 | 2013 | 2014 | |||
| Early phase | 1–3 | 0 | 2 | 0 | 3 | 0 | 5 |
| Middle phase | 4–10 | 3 | 3 | 5 | 0 | 2 | 13 |
| Late phase | 11∼ | 0 | 0 | 0 | 0 | 0 | 0 |
| Subtotal | 3 | 5 | 5 | 3 | 2 | 18 | |
